A type of freezer

Abstract

This invention relates to the field of refrigeration equipment technology and discloses a freezer, including a cabinet, an evaporator, and a self-evaporating assembly. The compressor chamber inside the cabinet houses a compressor, a condenser, and an evaporation connecting pipe. The self-evaporating assembly includes an evaporating dish and a water receiving pipe. The evaporating dish includes an outer shell and an inner shell. The inner shell is located within the outer shell, forming a first cavity between the inner side of the outer shell and the outer side of the inner shell. A second cavity is formed inside the inner shell, and an overflow port communicating with both the first and second cavities is located at a predetermined position within the inner shell. One end of the water receiving pipe collects condensate from the evaporator, and the other end communicates with the first cavity. The evaporation connecting pipe is spirally wound around the outer surface of the outer shell. The evaporating dish of this application has a two-layer structure. Condensate first flows into the first cavity of the outer layer for efficient evaporation, and excess condensate overflows into the second cavity of the inner layer for water-storage evaporation.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a freezer. Background Technology

[0002] Freezers or refrigerators produce condensate during operation, and a condensate self-evaporation device needs to be installed to handle the condensate.

[0003] Existing condensate self-evaporation devices are generally water collection pans (evaporation dishes) located in the compressor room. Common configurations include: the water collection pan is in contact with the top of the compressor, directly utilizing the heat of the compressor; the water collection pan is heated by high-temperature and high-pressure refrigerant pipes, so that the pipes are in contact with the outer surface of the water collection pan; or the pipes are immersed in the water collection pan and directly in contact with water.

[0004] The self-evaporation capacity of the water tray per unit volume of the above solution is generally only sufficient for normal use. In areas with high temperature and humidity or high customer traffic, frequent opening of the door to retrieve beverages or failure to close the door properly may cause water vapor to enter the cabinet. This could result in the condensate inside the cabinet exceeding the evaporation capacity of the self-evaporation device designed for the product, causing the condensate to overflow onto the ground and leading to customer complaints.

[0005] Therefore, existing technologies urgently need improvement. Summary of the Invention

[0006] The purpose of this invention is to provide a freezer that solves the technical problem that the self-evaporation capacity of the drip tray in existing freezers is insufficient to cope with the special situation of large amounts of condensate, which easily leads to condensate overflowing outside the freezer.

[0007] To achieve the above objectives, the present invention provides a freezer, comprising:

[0008] The cabinet contains a refrigeration chamber and a compressor chamber; the compressor chamber is equipped with a compressor, a condenser and an evaporation connecting pipe; the first end of the evaporation connecting pipe is connected to the exhaust end of the compressor and the second end is connected to the condenser.

[0009] An evaporator, located inside the cabinet, is used to cool the refrigeration chamber;

[0010] It also includes a self-evaporating component located in the compressor chamber;

[0011] The self-evaporating assembly includes an evaporating dish and a water inlet fitting;

[0012] The evaporating dish includes an outer shell and an inner shell; the inner shell is disposed inside the outer shell, a first cavity is formed between the inner side of the outer shell and the outer side of the inner shell, and a second cavity is formed inside the inner shell; an overflow port communicating with the first cavity and the second cavity is provided at a predetermined position in the inner shell;

[0013] One end of the water inlet pipe is used to collect the condensate from the evaporator, and the other end is connected to the first cavity.

[0014] The evaporation connecting pipe is spirally wound around the outer side of the outer casing.

[0015] In some embodiments of this application, both the outer shell and the inner shell are open shells, the height of the inner shell is less than the height of the outer shell, and the opening of the inner shell is the overflow port.

[0016] In some embodiments of this application, the water inlet fitting includes a water pipe and a water inlet; the water inlet is connected to the outer shell and / or the inner shell, one end of which communicates with the first cavity, and the other end of which communicates with one end of the water pipe, the other end of which is used to collect the condensate from the evaporator.

[0017] In some embodiments of this application, the volume of the first cavity is equal to or greater than the amount of condensate released by the evaporator during a single defrost cycle.

[0018] In some embodiments of this application, the outer shell and the inner shell are cylindrical or elliptical, with their centers coinciding.

[0019] In some embodiments of this application, at least one raised texture is provided on the inner side of the outer shell, and a water-holding groove structure is formed between the raised texture and the inner side of the outer shell.

[0020] In some embodiments of this application, the raised portion is a spiral raised portion; the spiral raised portion forms a spiral groove extending from top to bottom on the inner side surface of the outer casing.

[0021] In some embodiments of this application, the raised texture is an annular raised texture; the annular raised texture is arranged at intervals from top to bottom, forming multiple grooves on the inner side surface of the outer casing.

[0022] In some embodiments of this application, the lateral width of the trench increases sequentially from top to bottom, so that the lower trench can catch water overflowing from the upper trench.

[0023] In some embodiments of this application, the annular protrusion is disposed at a predetermined angle on the inner side of the outer casing, so that the groove has a bottom surface that slopes downward from the inside out.

[0024] In some embodiments of this application, the self-evaporation assembly further includes a sleeve; the sleeve is fitted over the outside of the evaporation connecting pipe and is used to cover the evaporation connecting pipe.

[0025] In some embodiments of this application, a first fastener is provided on the bottom plate of the compressor chamber, and a second fastener is provided at the bottom of the outer shell to form a detachable snap-fit ​​with the first fastener.

[0026] Compared with the prior art, the advantages of the freezer provided in this embodiment of the invention are as follows:

[0027] The freezer in this embodiment of the invention has a two-layer evaporation dish. Condensate first flows into the outer first cavity, maximizing the vertical contact area between the condensate and the outer surface of the spirally wound evaporation connecting pipe, thus enabling efficient evaporation. When the amount of condensate is greater than usual, it naturally overflows into the inner second cavity for water-retaining evaporation, effectively preventing condensate overflow. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is an axial side view of the self-evaporation component of the freezer according to an embodiment of the present invention;

[0030] Figure 2 This is a front view structural schematic diagram of the self-evaporation component of the freezer according to an embodiment of the present invention;

[0031] Figure 3 This is a top view of the self-evaporation component of the freezer according to an embodiment of the present invention;

[0032] Figure 4 This is an exploded structural diagram of a self-evaporating assembly equipped with a sleeve;

[0033] Figure 5 This is a schematic diagram of the assembly structure of a self-evaporating component with a sleeve.

[0034] Figure 6 This is a cross-sectional view of the self-evaporation component in another embodiment;

[0035] Figure 7 This is a schematic diagram of the axial structure of the self-evaporating component (excluding the sleeve) in another embodiment;

[0036] Figure 8 yes Figure 7 A cross-sectional view of the self-evaporation assembly (including the sleeve) in the embodiment;

[0037] In the diagram, 100 is the evaporation connecting pipe; 101 is the first end; 102 is the second end; 210 is the evaporation dish; 211 is the outer shell; 212 is the inner shell; 220 is the water inlet; 230 is the sleeve; 241 is the spiral protrusion; 2410 is the spiral groove; 242 is the annular protrusion; 2420 is the layer groove; and 250 is the second fastener. Detailed Implementation

[0038] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0039] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "multiple" means two or more.

[0041] In the description of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0042] A preferred embodiment of the present invention provides a refrigerator comprising a cabinet, an evaporator, and a self-evaporating component.

[0043] Specifically, the cabinet contains a refrigeration chamber and a compressor chamber. The compressor chamber houses a compressor, a condenser, and an evaporator connecting pipe 100. The first end 101 of the evaporator connecting pipe 100 connects to the compressor's exhaust end, and its second end 102 connects to the condenser. The evaporator, located within the cabinet, is used to cool the refrigeration chamber. The compressor, condenser, evaporator connecting pipe 100, and evaporator are all part of the freezer's refrigeration system. The refrigerant, compressed into a high-temperature, high-pressure gaseous form by the compressor, is discharged from the compressor's exhaust end and enters the condenser through the evaporator connecting pipe 100 to condense and liquefy. During this process, heat is released to the environment. The refrigerant then becomes a room-temperature, high-pressure liquid refrigerant, which flows along the refrigeration pipes and through valves and capillary tubes to the evaporator to exchange heat with the environment, thus cooling the refrigeration chamber. The structure, connections, and working principle of the freezer's refrigeration system are existing technologies and will not be elaborated upon in this application.

[0044] The self-evaporating unit is located in the compressor compartment; see below. Figure 1 -8. The self-evaporation assembly specifically includes an evaporating dish 210, a water inlet fitting, and a sleeve 230.

[0045] The evaporating dish 210 includes an outer shell 211 and an inner shell 212. The inner shell 212 is disposed inside the outer shell 211, forming a first cavity between the inner side of the outer shell 211 and the outer side of the inner shell 212. A second cavity is formed inside the inner shell 212, and an overflow port communicating with the first and second cavities is provided at a predetermined position in the inner shell 212. In this embodiment, both the outer shell 211 and the inner shell 212 are open shells, and the height of the inner shell 212 is less than the height of the outer shell 211. The opening of the inner shell 212 is the overflow port. Preferably, the volume of the first cavity is less than the volume of the second cavity, and once the defrosting program of the freezer is determined, the amount of condensate released by the evaporator during one defrost cycle has a range of data. In this application, it is preferable to set the volume of the first cavity to be equal to or greater than the amount of condensate released by the evaporator during one defrost cycle, so that the condensate from one defrost cycle is evaporated within the first cavity as much as possible.

[0046] The water receiving fitting may include a water pipe (not shown in the figure) and a water inlet 220. A water collection trough is generally provided inside the cabinet to collect the condensate from the evaporator. The water pipe is connected to the lowest point of the water collection trough to collect the condensate, and its outlet can extend into the compressor chamber. The water inlet 220 is connected and fixed to the outer shell 211 and / or the inner shell 212, with one end communicating with the first cavity and the other end communicating with the outlet of the water pipe, thereby introducing the condensate into the first cavity. The structure of the above-mentioned water receiving fitting facilitates disassembly and assembly. In some embodiments, when the self-evaporating assembly is fixedly installed in the compressor chamber and cannot be disassembled, the water pipe and the water inlet 220 can be integrated into one unit.

[0047] The evaporation connecting pipe 100 is spirally wound around the outer surface of the outer casing 211. Preferably, the evaporation connecting pipe 100 can be a D-shaped pipe fitting so that the evaporation connecting pipe 100 fits tightly against the outer casing 211.

[0048] The outer shell 211 and the inner shell 212 can be cylindrical, elliptical, or square, with their centers coinciding. The outer shell 211 and the inner shell 212 are preferably cylindrical, with their centers coinciding. The circular shape provides the largest volume for the same material and facilitates the dense winding of the evaporation connecting tube 100.

[0049] In this application, when condensate flows into the evaporating dish 210, it first enters the smaller outer cavity, maximizing the vertical contact area between the condensate and the inner surface of the outer shell 211. The outer surface of the outer shell 211 is equipped with a spirally wound evaporation connecting pipe 100, enabling efficient evaporation of the condensate. Preferably, the volume of the first cavity is approximately equal to the amount of condensate released during a single defrost cycle of the evaporator in the freezer, ensuring efficient evaporation of the condensate within the first cavity most of the time. When the freezer is in a special situation with more condensate than usual, the inner shell 212 has an overflow port, allowing the excess condensate to overflow naturally into the larger inner cavity for water-storage evaporation, effectively preventing condensate overflow.

[0050] Existing technologies also include evaporation devices with a two-layer structure, but these generally involve overflow from the inside out or overflow from one drip tray to another spare drip tray, with the two-layer structure only serving a simple water storage function. Since the generation of condensate in the cabinet is intermittent, condensate flowing in at a certain time, in the scheme of this application, will only enter the second chamber for water storage evaporation if it is not evaporated in the first chamber in time. Therefore, the scheme of this application combines efficient evaporation with water storage functions.

[0051] See Figure 4 and Figure 5 , Figure 4 This is an exploded structural diagram of the self-evaporating assembly equipped with a sleeve 230 (the inner shell 212 and the raised texture mentioned below are omitted in the figure). Figure 5 This is an assembly diagram. The sleeve 230 is fitted onto the outside of the evaporation connecting tube 100 to cover it.

[0052] When the sleeve 230 is connected to the evaporating dish 210, the sleeve 230 and the evaporating dish 210 can be integrally formed. An installation space is reserved between the outer surfaces of the sleeve 230 and the evaporating dish 210, and the bottom of the installation space has an opening through which the evaporating connecting pipe 100 enters the installation space. Correspondingly, the evaporating connecting pipe 100 is folded to form a double row of pipes and wound into a spiral sleeve shape, with both its first and second ends located at the bottom. The evaporating connecting pipe 100 enters the installation space from bottom to top and is fitted onto the outer surface of the evaporating dish 210, with its first and second ends extending from the opening and respectively connecting to the compressor and the condenser. Those skilled in the art should understand that the installation method of the evaporating connecting pipe 100 is not limited to the above preferred embodiment.

[0053] In some embodiments, the sleeve 230 may also be directly installed with an interference fit to the evaporation connecting tube 100, without being connected to the evaporation dish 210.

[0054] In the prior art, since the compressor, condenser and evaporator in the compressor room all have heat dissipation requirements, a condenser fan is set up to accelerate heat dissipation. The evaporator in contact with the water tray is always set to be directly exposed to the air so that the air from the condenser fan can dissipate heat. At the same time, the air can also accelerate the evaporation of water in the water tray.

[0055] In the embodiments of this application, a sleeve 230 is provided on the outside of the evaporation connecting pipe 100 to cover the evaporation connecting pipe 100. This can prevent the heat of the pipe section wrapped on the outer shell 211 from being carried away by the condenser fan, thereby making it easier to use all the heat of the pipe section for evaporating condensate and making more efficient use of heat.

[0056] In some embodiments, at least one raised portion is provided on the inner surface of the outer casing 211, forming a water-holding groove structure between the raised portion and the inner surface of the outer casing 211. A water inlet 220 is located at the top of the groove structure, allowing condensate to flow from the top to the bottom, increasing the time the condensate remains on the inner surface of the outer casing 211 and thus improving evaporation efficiency. Specifically, the raised portion can have different configurations, as follows: Figure 6 -7 are some preferred embodiments. Figure 6 The inner shell 212 is omitted in -7 and is not shown.

[0057] See Figure 6In one embodiment, the raised portion is a spiral protrusion 241, which forms a continuous spiral groove 2410 extending from top to bottom on the inner side of the outer casing 211, having a certain water-holding capacity. A water inlet 220 is located at the top of the spiral groove 2410. When condensate enters from the water inlet 220, it flows from top to bottom along the spiral groove 2410, preventing condensate from falling directly into the bottom of the first cavity. This increases the contact time between the condensate and the inner side of the outer casing 211, effectively improving the evaporation efficiency of the condensate.

[0058] Based on the above embodiments, see Figure 1 -3. The first end 101 of the evaporator connecting pipe 100 can be positioned at the bottom, and the second end 102 at the top. That is, the refrigerant in the evaporator connecting pipe 100 flows from bottom to top, and the condensate flows from top to bottom. This allows the condensate and the evaporator connecting pipe 100 to exchange heat in opposite directions through the wall of the outer casing 211, effectively increasing the heat exchange efficiency. Of course, those skilled in the art should understand that the evaporator connecting pipe 100 can also be used to exchange heat in the same direction by flowing from top to bottom.

[0059] See Figure 7 In another embodiment, the raised portion is an annular protrusion 242. The annular protrusions 242 are spaced apart from top to bottom, forming multiple grooves 2420 on the inner side surface of the outer casing 211. A water inlet 220 is provided at the uppermost groove 2420 to guide condensate water to the uppermost groove 2420.

[0060] Furthermore, the lateral width W of the groove 2420 increases from top to bottom, so that the lower groove can catch water overflowing from the upper groove. That is, the annular protrusion 242 extends slightly more towards the center from top to bottom.

[0061] Furthermore, the annular protrusion 242 is disposed on the inner side of the outer casing 211 at a predetermined angle X, so that the groove 2420 has a bottom surface that slopes downward from the inside to the outside (i.e., slopes towards the inner side of the outer casing 211), thereby increasing the contact time between the condensate and the inner side of the outer casing 211 and effectively improving the evaporation efficiency of the condensate.

[0062] In the above embodiments, the outer shell 211, the inner shell 212, and the textured portion can all be made of plastic or metal materials.

[0063] In some embodiments, see Figure 2 The compressor compartment has a first fastener (not shown in the figure) on the bottom plate, and the outer shell 211 (evaporating dish 210) has a second fastener 250 at the bottom that can be detachably fastened to the first fastener, so as to facilitate the assembly and disassembly of the self-evaporating assembly.

[0064] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A freezer, comprising: The cabinet contains a refrigeration chamber and a compressor chamber. The compressor chamber is equipped with a compressor, a condenser, and an evaporator connecting pipe; the first end of the evaporator connecting pipe is connected to the exhaust end of the compressor, and the second end is connected to the condenser. An evaporator, located inside the cabinet, is used to cool the refrigeration chamber; Its characteristic is that it further includes a self-evaporating component disposed in the compressor chamber; The self-evaporating assembly includes an evaporating dish and a water inlet fitting; The evaporating dish includes an outer shell and an inner shell; the inner shell is disposed inside the outer shell, a first cavity is formed between the inner side of the outer shell and the outer side of the inner shell, a second cavity is formed inside the inner shell, and an overflow port communicating with the first cavity and the second cavity is provided at a predetermined position in the inner shell; One end of the water inlet pipe is used to collect the condensate from the evaporator, and the other end is connected to the first cavity. The evaporation connecting pipe is spirally wound around the outer surface of the outer casing; The inner side of the outer shell is provided with at least one raised texture, and a water-holding groove structure is formed between the raised texture and the inner side of the outer shell.

2. The freezer according to claim 1, characterized in that, Both the outer shell and the inner shell are open shells, and the height of the inner shell is less than the height of the outer shell. The opening of the inner shell is the overflow port.

3. The freezer according to claim 1, characterized in that, The water connection fittings include a water pipe and a water inlet; The water inlet is connected to the outer shell and / or the inner shell, with one end connected to the first cavity and the other end connected to one end of the water pipe. The other end of the water pipe is used to collect the condensate from the evaporator.

4. The freezer according to claim 1, characterized in that, The raised part is a spiral raised part; the spiral raised part forms a spiral groove extending from top to bottom on the inner side of the outer shell.

5. The freezer according to claim 1, characterized in that, The raised portion is an annular raised portion; the annular raised portions are arranged at intervals from top to bottom, thereby forming multiple grooves on the inner surface of the outer casing.

6. The freezer according to claim 5, characterized in that, At least two annular protrusions are provided, and the lateral width of the grooves increases sequentially from top to bottom, so that the lower groove can catch the water overflowing from the upper groove.

7. The freezer according to claim 6, characterized in that, The annular protrusion is disposed at a predetermined angle on the inner side of the outer shell, so that the groove has a bottom surface that slopes downward from the inside to the outside.

8. The freezer according to claim 1, characterized in that, The self-evaporation assembly also includes a sleeve; The sleeve is fitted onto the outside of the evaporation connecting pipe to cover it.

9. The freezer according to claim 1, characterized in that, The compressor chamber has a first fastener on its bottom plate, and the outer shell has a second fastener at its bottom that can be detachably fastened to the first fastener.

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